On the Effect of Imperfect Cophasing in MRC and EGC Receivers Over Correlated Weibull Fading

Nikolić, Bojana; Djordjević, Goran T.; Karagiannidis, George K.

doi:10.1007/s11277-010-0036-2

Cited by 3 publications

(2 citation statements)

References 13 publications

(17 reference statements)

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“…For this reason, a diversity receiver is often used to improve the transmission quality. There are three basic combining concepts available in the literature: maximum ratio combining (MRC) [1], [2], equal-gain combining (EGC) [3][4][5][6][7] or selection combining (SC) [1], [2] technique. In practice, the combining is often realized using the constant modulus algorithm (CMA) [8].…”

Section: Introductionmentioning

confidence: 99%

A Novel Diversity Receiver Structure for Severe Fading and Frequency Offset Conditions

Dimitrijević¹,

Krstic²,

Nikolić³

2015

RADIOENGINEERING

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This paper presents a novel diversity receiver of MPSK signal in fading channel in the presence of the carrier frequency offset. As a part of this receiver, a new algorithm for the estimation of the combining coefficients (ECC algorithm) is introduced. Having in mind that the QPSK modulation is one of the most used modulation formats in many wireless communication standards (LTE, WiFi, WiMax), the performance of the proposed receiver is analyzed in more detail for the QPSK modulation. In the presence of Rayleigh fading, representing the most severe fading condition, this algorithm shows significantly better performance comparing to the same receiver structure that uses conventional constant modulus algorithm (CMA1 or CMA2). The proposed diversity receiver structure with ECC algorithm operates within a wide carrier frequency offset range with a very small variation of the performance. For this reason, it can be applied in 4G mobile communication systems.

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Section: Introductionmentioning

confidence: 99%

A Novel Diversity Receiver Structure for Severe Fading and Frequency Offset Conditions

Dimitrijević¹,

Krstic²,

Nikolić³

2015

RADIOENGINEERING

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“…Diversity technique is a communication receiver technique that provides wireless link improvement at relatively low cost by combating the deleterious effect of channel fading and increasing the communication reliability without enlarging either transmitting power or bandwidth of the channel [1,[6][7][8][9][10][11]. Among the various known diversity combining techniques, selection combining (SC) is perhaps the most frequently used in practice because of its simplicity of realization [1,[6][7][8], [11].…”

Section: Introductionmentioning

confidence: 99%

Performance of SC Receiver over Generalized K Fading Channel in the Presence of Imperfect Reference Signal Recovery

Nikolić

Djordjević

Milić

et al. 2011

ElAEE

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B. Nikolic, G. Dordevic, D. Milic, N. Milosevic. Performance of SC Receiver over Generalized K Fading Channel in the Presence of Imperfect Reference Signal Recovery // Electronics and Electrical Engineering. -Kaunas: Technologija, 2011. -No. 9(115). -P. 41-46.This paper considers a partially coherent detection of quadrature phase-shift keying (QPSK) signals in a composite generalized K (K G ) fading channel. At the reception the selection combining is applied, while the branches of the combiner are not identically distributed. The extraction of the reference carrier from non-modulated pilot signal is performed in a phase-locked loop (PLL) circuit. The difference between received signal phase and extracted reference signal phase is a stochastic variable with Tikhonov probability density function. The influence of the fading parameters, the standard deviation of phase error and the number of diversity branches on the system performance is examined. The bit-error rate is used as a measure of the reception quality. Ill. 6, bibl. 17 (in English; abstracts in English and Lithuanian). B. Nikolic, G. Dordevic, D. Milic, N. Miloševic. SC imtuvo našumo tyrimas atsižvelgiant į apibendrinantįjį K slopinimą kanale // Elektronika ir elektrotechnika. -Kaunas: Technologija, 2011. -Nr. 9(115). -P. 41-46.Nagrinėjama dalinė koherentinė signalo, moduliuoto kvadratūrine fazine manipuliacija, detekcija atsižvelgiant į apibendrinantįjį K (K G ) slopinimą kanale. Priėmus signalą analizuojamas nešantysis signalas. Nemoduliuoto signalo šaltinis atskiriamas fazinėje kilpoje. Stochastinis kintamasis su Tikhonovo tikimybės tankio funkcija yra pagrindinis skirtumas tarp demoduliuoto signalo ir atskirto signalo šaltinio. Ištirta slopinimo parametrų, standartinio nuokrypio fazinė klaidos įtaka. Il. 6, bibl. 17 (anglų kalba; santraukos anglų ir lietuvių k.).

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On the effect of imperfect reference signal recovery on BER performance of PSK receiver in composite fading channel

Nikolić

Djordjević

2013

2013 21st Telecommunications Forum Telfor (TELFOR)

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On the Effect of Imperfect Cophasing in MRC and EGC Receivers Over Correlated Weibull Fading

Cited by 3 publications

References 13 publications

A Novel Diversity Receiver Structure for Severe Fading and Frequency Offset Conditions

A Novel Diversity Receiver Structure for Severe Fading and Frequency Offset Conditions

Performance of SC Receiver over Generalized K Fading Channel in the Presence of Imperfect Reference Signal Recovery

On the effect of imperfect reference signal recovery on BER performance of PSK receiver in composite fading channel

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